System and process for treating waste gas in chemical industry by utilizing catalytic oxidization and biological filtration
A catalytic oxidation and biological filtration technology, applied in chemical instruments and methods, air quality improvement, combined devices, etc., can solve the problems of exhaust gas endangering health, endangering human health, complexity, etc., and achieve the effect of simple process
Active Publication Date: 2015-02-25
BEIJING DILI WEIYE TECH DEV
View PDF4 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Due to the complex composition of the existing chemical industry waste gas, it is difficult to completely purify it with a single method, so that the exhaust gas still contains components that are harmful to health, causing environmental pollution and endangering human health
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0038] The above-mentioned system is used to treat the production waste gas of a chemical plant. Among them, the temperature of the production waste gas is 70°C, the water vapor content is 71%, the total non-methane hydrocarbon concentration is 6034.7ppm, and the benzene concentration is 3561.4ppm.
[0039] The unit removal rate and the overall removal rate of each unit to non-methane total hydrocarbons are shown in Table 1: wherein, the unit removal rate: the actual removal rate of each unit, that is: the removal concentration obtained by deducting the outlet concentration from the inlet pollutant concentration of each unit rate; the overall removal rate: each unit can remove the ratio of the original concentration,
[0040] Table 1 The removal rate of non-methane total hydrocarbons by each unit
[0041]
[0042]
[0043] The unit removal rate and overall removal rate of benzene in each unit are shown in Table 2:
[0044] The removal rate of each unit to benzene in ta...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
| Property | Measurement | Unit |
|---|---|---|
| particle diameter | aaaaa | aaaaa |
| thickness | aaaaa | aaaaa |
| thickness | aaaaa | aaaaa |
Login to View More
Abstract
The invention discloses a system and a process for treating waste gas in the chemical industry by utilizing catalytic oxidization and biological filtration. The system comprises a spraying cooling tower, a primary oil-gas separator, a chemical oxidization tower, a secondary oil-gas separator, a biological oxidization treating bed and an exhausting tower which are sequentially communicated with one another. The process comprises the following steps of: a, removing foreign matters in the waste gas and organic pollutants dissolved in water under the spraying effect of the water, b, carrying out oil-water separation on the waste gas after being sprayed by the water, and removing the foreign matters and oily components in the waste gas; c, carrying out catalytic oxidization on the waste gas after the oil-water separation, and converting foul components in the waste gas to inorganic salt dissolved in the water; and d, biologically degrading the pollutants in the waste gas after the catalytic oxidization under the effect of microorganisms. The waste gas treatment system reasonably combines the catalytic oxidization and biological filtration technologies, so that the removal rate of organic and inorganic components in the waste gas can be up to more than 99 percent, and the toxic waste gas with foul odor produced in the chemical industry can meet the emission standard after being treated.
Description
technical field [0001] The invention relates to a waste gas treatment system and process, in particular to a system and process for treating chemical production waste gas by applying catalytic oxidation and biological filtration, and belongs to the field of environmental protection. Background technique [0002] Chemical waste gas is poisonous and harmful gas produced in chemical production. Chemical waste gas often contains many kinds of pollutants, such as hydrocarbons, alcohols, ketones, ethers, esters, phenols and other organic compounds, with complex physical and chemical properties and different toxicity, which may cause respiratory system, digestive system, reproductive system, etc. System and other diseases, when serious, can also cause acute poisoning symptoms such as fatigue, dizziness, headache, nausea and vomiting, seriously affect human health, and pollute the environment. Due to the complex components of the existing chemical industry waste gas, it is difficul...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): B01D53/75B01D53/00B01D53/84B01D53/79B01D53/72B01D50/00
CPCY02A50/20
Inventor 顿继田柳少锋
Owner BEIJING DILI WEIYE TECH DEV